Device for microphones for reducing the acoustic feedback and suppressing interfering environmental noises,申请号DE19863639499-传众专利搜索

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发明名称	Device for microphones for reducing the acoustic feedback and suppressing interfering environmental noises
摘要	Published without abstract.
申请公布号	DE3639499(A1)	申请公布日期	1988.05.26
申请号	DE19863639499	申请日期	1986.11.24
申请人	WEINZIERL,FRANZ,DIPL.-ING.	发明人	WEINZIERL,FRANZ,DIPL.-ING.
分类号	H04R1/34;H04R3/02;(IPC1-7):H04R1/32;H04B1/38;H04M1/62	主分类号	H04R1/34
代理机构		代理人
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